namespace Nwc.XmlRpc
{
  using System;
  using System.Collections;
  using System.Xml;
  using System.IO;

  /// <summary>Class responsible for serializing an XML-RPC request.</summary>
  /// <remarks>This class handles the request envelope, depending on <c>XmlRpcSerializer</c>
  /// to serialize the payload.</remarks>
  /// <seealso cref="XmlRpcSerializer"/>
  public class XmlRpcRequestSerializer : XmlRpcSerializer
  {
    /// <summary>Serialize the <c>XmlRpcRequest</c> to the output stream.</summary>
    /// <param name="output">An <c>XmlTextWriter</c> stream to write data to.</param>
    /// <param name="obj">An <c>XmlRpcRequest</c> to serialize.</param>
    /// <seealso cref="XmlRpcRequest"/>
    override public void Serialize(XmlTextWriter output, Object obj)
      {
	XmlRpcRequest request = (XmlRpcRequest)obj;
	output.WriteStartDocument();
	output.WriteStartElement(METHOD_CALL);
	output.WriteElementString(METHOD_NAME,request.MethodName);
	output.WriteStartElement(PARAMS);
	foreach (Object param in request.Params)
	  {
	    output.WriteStartElement(PARAM);
	    output.WriteStartElement(VALUE);
	    SerializeObject(output, param);
	    output.WriteEndElement();
	    output.WriteEndElement();
	  }

	output.WriteEndElement();
	output.WriteEndElement();
      }
  }
}
